Mark Hausknecht
NPI 1386214310 · Addiction (Substance Use Disorder) Counselor · Tarzana, CA
Mark Hausknecht is a Addiction (Substance Use Disorder) Counselor provider in Tarzana, CA (NPI 1386214310).
Provider details
- NPI number
- 1386214310
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-07-01
- Last updated
- 2021-07-01
- Certified
- 2021-07-01
Frequently asked questions
- What is Mark Hausknecht's NPI number?
- Mark Hausknecht's National Provider Identifier (NPI) is 1386214310, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Hausknecht's specialty?
- Mark Hausknecht is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Hausknecht located?
- Mark Hausknecht's practice location on file with NPPES is 18646 Oxnard St, Tarzana, CA 91356-1411.
- What is Mark Hausknecht's phone number?
- The practice phone number listed in the NPPES registry for Mark Hausknecht is (818) 654-3828.
- Is Mark Hausknecht's NPI active?
- Yes — Mark Hausknecht's NPI (1386214310) is active in the NPPES registry as of the last update on 2021-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.